code: def prepare_config_and_inputs_for_common(self):
      config_and_inputs = self.prepare_config_and_inputs()
      (config, input_ids_1, input_ids_2, lm_labels) = config_and_inputs
      inputs_dict = {"input_ids": input_ids_1}
      return config, inputs_dict
  
imports: import random
  import unittest
  from transformers import TransfoXLConfig, is_tf_available
  from transformers.testing_utils import require_tf, slow
  from ...test_configuration_common import ConfigTester
  from ...test_modeling_tf_common import TFModelTesterMixin, ids_tensor
label_desc: Use image node_id 7 for calling the TFTransfoXLModelTester obj's underlying member method code with example usage: obj.prepare_config_and_inputs_for_common() and returns: config,  inputs_dict